MMC.cfg is not blocking flash url

Question

Hi, I created new mms.cfg file on Windows 7 machine with some allowed list but when I visit any url it allow the flash to run.

Same file on windows 10 is blocking the flash player.

mms.cfg file has these settings

EOLUninstallDisable=1

autoupdateDisable=1

slientAutoUpdateEnable=0

EnableAllowList=1

AllowListURLPattern = *://url1

AllowListURLPattern = *://url2

AllowListURLPattern = *://url3

When I visit url 4 on windows 7 which is not in the allow list I can still play the video but same url on windows 10 doesnt work

jeromiec83223024 · Answer

There are both 32-bit and 64-bit variants of Flash Player, and in order to use the 64-bit player, you need both a 64-bit OS and a 64-bit browser.

My guess is that on Win10, you've got 64-bit everything, and you put mms.cfg in C:\Windows\System32\Macromed\Flash, and everything works.

It's super common to have 64-bit Win7, but 32-bit IE, and my guess is that's what's happening here.

In this case, the 32-bit Flash Player would get launched on a 64-bit system, and would need to look for mms.cfg in: C:\Windows\SysWow64\Macromed\Flash\.

(The other possibility is 32-bit Flash Player on 32-bit Win7, but then C:\Windows\System32\Macromed\Flash would have worked.)

If that doesn't work, try putting mms.cfg in both System32 and SysWOW64, and then reboot.

If you're still stuck, please include the details from the guide below, and a copy of your mms.cfg.
https://forums.adobe.com/thread/1195540

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